Update Linux to v5.4.148

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.4.148.tar.gz

Change-Id: Ib3d26c5ba9b022e2e03533005c4fed4d7c30b61b
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
index ae79a7c..2477b2a 100644
--- a/drivers/hid/hid-alps.c
+++ b/drivers/hid/hid-alps.c
@@ -25,6 +25,7 @@
 
 #define U1_MOUSE_REPORT_ID			0x01 /* Mouse data ReportID */
 #define U1_ABSOLUTE_REPORT_ID		0x03 /* Absolute data ReportID */
+#define U1_ABSOLUTE_REPORT_ID_SECD  0x02 /* FW-PTP Absolute data ReportID */
 #define U1_FEATURE_REPORT_ID		0x05 /* Feature ReportID */
 #define U1_SP_ABSOLUTE_REPORT_ID	0x06 /* Feature ReportID */
 
@@ -368,6 +369,7 @@
 	case U1_FEATURE_REPORT_ID:
 		break;
 	case U1_ABSOLUTE_REPORT_ID:
+	case U1_ABSOLUTE_REPORT_ID_SECD:
 		for (i = 0; i < hdata->max_fingers; i++) {
 			u8 *contact = &data[i * 5];
 
@@ -730,7 +732,7 @@
 	if (data->has_sp) {
 		input2 = input_allocate_device();
 		if (!input2) {
-			input_free_device(input2);
+			ret = -ENOMEM;
 			goto exit;
 		}
 
@@ -760,6 +762,7 @@
 
 		if (input_register_device(data->input2)) {
 			input_free_device(input2);
+			ret = -ENOENT;
 			goto exit;
 		}
 	}
@@ -802,6 +805,7 @@
 		break;
 	case HID_DEVICE_ID_ALPS_U1_DUAL:
 	case HID_DEVICE_ID_ALPS_U1:
+	case HID_DEVICE_ID_ALPS_U1_UNICORN_LEGACY:
 		data->dev_type = U1;
 		break;
 	default:
diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index 6ac8bec..6909c04 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -54,6 +54,7 @@
 struct apple_sc {
 	unsigned long quirks;
 	unsigned int fn_on;
+	unsigned int fn_found;
 	DECLARE_BITMAP(pressed_numlock, KEY_CNT);
 };
 
@@ -339,11 +340,15 @@
 		struct hid_field *field, struct hid_usage *usage,
 		unsigned long **bit, int *max)
 {
+	struct apple_sc *asc = hid_get_drvdata(hdev);
+
 	if (usage->hid == (HID_UP_CUSTOM | 0x0003) ||
-			usage->hid == (HID_UP_MSVENDOR | 0x0003)) {
+			usage->hid == (HID_UP_MSVENDOR | 0x0003) ||
+			usage->hid == (HID_UP_HPVENDOR2 | 0x0003)) {
 		/* The fn key on Apple USB keyboards */
 		set_bit(EV_REP, hi->input->evbit);
 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_FN);
+		asc->fn_found = true;
 		apple_setup_input(hi->input);
 		return 1;
 	}
@@ -370,6 +375,19 @@
 	return 0;
 }
 
+static int apple_input_configured(struct hid_device *hdev,
+		struct hid_input *hidinput)
+{
+	struct apple_sc *asc = hid_get_drvdata(hdev);
+
+	if ((asc->quirks & APPLE_HAS_FN) && !asc->fn_found) {
+		hid_info(hdev, "Fn key not found (Apple Wireless Keyboard clone?), disabling Fn key handling\n");
+		asc->quirks = 0;
+	}
+
+	return 0;
+}
+
 static int apple_probe(struct hid_device *hdev,
 		const struct hid_device_id *id)
 {
@@ -584,6 +602,7 @@
 	.event = apple_event,
 	.input_mapping = apple_input_mapping,
 	.input_mapped = apple_input_mapped,
+	.input_configured = apple_input_configured,
 };
 module_hid_driver(apple_driver);
 
diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index 8063b1d..e6e4c84 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -261,7 +261,8 @@
 		      struct hid_usage *usage, __s32 value)
 {
 	if ((usage->hid & HID_USAGE_PAGE) == 0xff310000 &&
-	    (usage->hid & HID_USAGE) != 0x00 && !usage->type) {
+	    (usage->hid & HID_USAGE) != 0x00 &&
+	    (usage->hid & HID_USAGE) != 0xff && !usage->type) {
 		hid_warn(hdev, "Unmapped Asus vendor usagepage code 0x%02x\n",
 			 usage->hid & HID_USAGE);
 	}
diff --git a/drivers/hid/hid-bigbenff.c b/drivers/hid/hid-bigbenff.c
index 3f6abd1..db6da21 100644
--- a/drivers/hid/hid-bigbenff.c
+++ b/drivers/hid/hid-bigbenff.c
@@ -174,6 +174,7 @@
 struct bigben_device {
 	struct hid_device *hid;
 	struct hid_report *report;
+	bool removed;
 	u8 led_state;         /* LED1 = 1 .. LED4 = 8 */
 	u8 right_motor_on;    /* right motor off/on 0/1 */
 	u8 left_motor_force;  /* left motor force 0-255 */
@@ -190,6 +191,9 @@
 		struct bigben_device, worker);
 	struct hid_field *report_field = bigben->report->field[0];
 
+	if (bigben->removed)
+		return;
+
 	if (bigben->work_led) {
 		bigben->work_led = false;
 		report_field->value[0] = 0x01; /* 1 = led message */
@@ -220,10 +224,16 @@
 static int hid_bigben_play_effect(struct input_dev *dev, void *data,
 			 struct ff_effect *effect)
 {
-	struct bigben_device *bigben = data;
+	struct hid_device *hid = input_get_drvdata(dev);
+	struct bigben_device *bigben = hid_get_drvdata(hid);
 	u8 right_motor_on;
 	u8 left_motor_force;
 
+	if (!bigben) {
+		hid_err(hid, "no device data\n");
+		return 0;
+	}
+
 	if (effect->type != FF_RUMBLE)
 		return 0;
 
@@ -298,8 +308,8 @@
 {
 	struct bigben_device *bigben = hid_get_drvdata(hid);
 
+	bigben->removed = true;
 	cancel_work_sync(&bigben->worker);
-	hid_hw_close(hid);
 	hid_hw_stop(hid);
 }
 
@@ -319,6 +329,7 @@
 		return -ENOMEM;
 	hid_set_drvdata(hid, bigben);
 	bigben->hid = hid;
+	bigben->removed = false;
 
 	error = hid_parse(hid);
 	if (error) {
@@ -341,10 +352,10 @@
 
 	INIT_WORK(&bigben->worker, bigben_worker);
 
-	error = input_ff_create_memless(hidinput->input, bigben,
+	error = input_ff_create_memless(hidinput->input, NULL,
 		hid_bigben_play_effect);
 	if (error)
-		return error;
+		goto error_hw_stop;
 
 	name_sz = strlen(dev_name(&hid->dev)) + strlen(":red:bigben#") + 1;
 
@@ -354,8 +365,10 @@
 			sizeof(struct led_classdev) + name_sz,
 			GFP_KERNEL
 		);
-		if (!led)
-			return -ENOMEM;
+		if (!led) {
+			error = -ENOMEM;
+			goto error_hw_stop;
+		}
 		name = (void *)(&led[1]);
 		snprintf(name, name_sz,
 			"%s:red:bigben%d",
@@ -369,7 +382,7 @@
 		bigben->leds[n] = led;
 		error = devm_led_classdev_register(&hid->dev, led);
 		if (error)
-			return error;
+			goto error_hw_stop;
 	}
 
 	/* initial state: LED1 is on, no rumble effect */
@@ -383,6 +396,10 @@
 	hid_info(hid, "LED and force feedback support for BigBen gamepad\n");
 
 	return 0;
+
+error_hw_stop:
+	hid_hw_stop(hid);
+	return error;
 }
 
 static __u8 *bigben_report_fixup(struct hid_device *hid, __u8 *rdesc,
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 2fa3587..b6740ad 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -90,7 +90,7 @@
  * Register a new field for this report.
  */
 
-static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
+static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages)
 {
 	struct hid_field *field;
 
@@ -101,7 +101,7 @@
 
 	field = kzalloc((sizeof(struct hid_field) +
 			 usages * sizeof(struct hid_usage) +
-			 values * sizeof(unsigned)), GFP_KERNEL);
+			 usages * sizeof(unsigned)), GFP_KERNEL);
 	if (!field)
 		return NULL;
 
@@ -288,13 +288,19 @@
 	offset = report->size;
 	report->size += parser->global.report_size * parser->global.report_count;
 
+	/* Total size check: Allow for possible report index byte */
+	if (report->size > (HID_MAX_BUFFER_SIZE - 1) << 3) {
+		hid_err(parser->device, "report is too long\n");
+		return -1;
+	}
+
 	if (!parser->local.usage_index) /* Ignore padding fields */
 		return 0;
 
 	usages = max_t(unsigned, parser->local.usage_index,
 				 parser->global.report_count);
 
-	field = hid_register_field(report, usages, parser->global.report_count);
+	field = hid_register_field(report, usages);
 	if (!field)
 		return 0;
 
@@ -781,6 +787,10 @@
 	if (usage == 0xff0000c5 && parser->global.report_count == 256 &&
 	    parser->global.report_size == 8)
 		parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8;
+
+	if (usage == 0xff0000c6 && parser->global.report_count == 1 &&
+	    parser->global.report_size == 8)
+		parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8;
 }
 
 static void hid_scan_collection(struct hid_parser *parser, unsigned type)
@@ -1290,6 +1300,9 @@
 
 static s32 snto32(__u32 value, unsigned n)
 {
+	if (!value || !n)
+		return 0;
+
 	switch (n) {
 	case 8:  return ((__s8)value);
 	case 16: return ((__s16)value);
@@ -1588,6 +1601,17 @@
 }
 
 /*
+ * Compute the size of a report.
+ */
+static size_t hid_compute_report_size(struct hid_report *report)
+{
+	if (report->size)
+		return ((report->size - 1) >> 3) + 1;
+
+	return 0;
+}
+
+/*
  * Create a report. 'data' has to be allocated using
  * hid_alloc_report_buf() so that it has proper size.
  */
@@ -1599,7 +1623,7 @@
 	if (report->id > 0)
 		*data++ = report->id;
 
-	memset(data, 0, ((report->size - 1) >> 3) + 1);
+	memset(data, 0, hid_compute_report_size(report));
 	for (n = 0; n < report->maxfield; n++)
 		hid_output_field(report->device, report->field[n], data);
 }
@@ -1729,9 +1753,11 @@
 		csize--;
 	}
 
-	rsize = ((report->size - 1) >> 3) + 1;
+	rsize = hid_compute_report_size(report);
 
-	if (rsize > HID_MAX_BUFFER_SIZE)
+	if (report_enum->numbered && rsize >= HID_MAX_BUFFER_SIZE)
+		rsize = HID_MAX_BUFFER_SIZE - 1;
+	else if (rsize > HID_MAX_BUFFER_SIZE)
 		rsize = HID_MAX_BUFFER_SIZE;
 
 	if (csize < rsize) {
@@ -1972,6 +1998,9 @@
 	case BUS_I2C:
 		bus = "I2C";
 		break;
+	case BUS_VIRTUAL:
+		bus = "VIRTUAL";
+		break;
 	default:
 		bus = "<UNKNOWN>";
 	}
@@ -2270,12 +2299,8 @@
 {
 	struct hid_device *hdev = to_hid_device(dev);
 	struct hid_driver *hdrv;
-	int ret = 0;
 
-	if (down_interruptible(&hdev->driver_input_lock)) {
-		ret = -EINTR;
-		goto end;
-	}
+	down(&hdev->driver_input_lock);
 	hdev->io_started = false;
 
 	hdrv = hdev->driver;
@@ -2290,8 +2315,8 @@
 
 	if (!hdev->io_started)
 		up(&hdev->driver_input_lock);
-end:
-	return ret;
+
+	return 0;
 }
 
 static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
diff --git a/drivers/hid/hid-cypress.c b/drivers/hid/hid-cypress.c
index a50ba4a..b88f889 100644
--- a/drivers/hid/hid-cypress.c
+++ b/drivers/hid/hid-cypress.c
@@ -23,19 +23,17 @@
 #define CP_2WHEEL_MOUSE_HACK		0x02
 #define CP_2WHEEL_MOUSE_HACK_ON		0x04
 
+#define VA_INVAL_LOGICAL_BOUNDARY	0x08
+
 /*
  * Some USB barcode readers from cypress have usage min and usage max in
  * the wrong order
  */
-static __u8 *cp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+static __u8 *cp_rdesc_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
-	unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
 	unsigned int i;
 
-	if (!(quirks & CP_RDESC_SWAPPED_MIN_MAX))
-		return rdesc;
-
 	if (*rsize < 4)
 		return rdesc;
 
@@ -48,6 +46,40 @@
 	return rdesc;
 }
 
+static __u8 *va_logical_boundary_fixup(struct hid_device *hdev, __u8 *rdesc,
+		unsigned int *rsize)
+{
+	/*
+	 * Varmilo VA104M (with VID Cypress and device ID 07B1) incorrectly
+	 * reports Logical Minimum of its Consumer Control device as 572
+	 * (0x02 0x3c). Fix this by setting its Logical Minimum to zero.
+	 */
+	if (*rsize == 25 &&
+			rdesc[0] == 0x05 && rdesc[1] == 0x0c &&
+			rdesc[2] == 0x09 && rdesc[3] == 0x01 &&
+			rdesc[6] == 0x19 && rdesc[7] == 0x00 &&
+			rdesc[11] == 0x16 && rdesc[12] == 0x3c && rdesc[13] == 0x02) {
+		hid_info(hdev,
+			 "fixing up varmilo VA104M consumer control report descriptor\n");
+		rdesc[12] = 0x00;
+		rdesc[13] = 0x00;
+	}
+	return rdesc;
+}
+
+static __u8 *cp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+		unsigned int *rsize)
+{
+	unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
+
+	if (quirks & CP_RDESC_SWAPPED_MIN_MAX)
+		rdesc = cp_rdesc_fixup(hdev, rdesc, rsize);
+	if (quirks & VA_INVAL_LOGICAL_BOUNDARY)
+		rdesc = va_logical_boundary_fixup(hdev, rdesc, rsize);
+
+	return rdesc;
+}
+
 static int cp_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 		struct hid_field *field, struct hid_usage *usage,
 		unsigned long **bit, int *max)
@@ -128,6 +160,8 @@
 		.driver_data = CP_RDESC_SWAPPED_MIN_MAX },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE),
 		.driver_data = CP_2WHEEL_MOUSE_HACK },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_VARMILO_VA104M_07B1),
+		.driver_data = VA_INVAL_LOGICAL_BOUNDARY },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, cp_devices);
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 9453147..0113571 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -929,6 +929,7 @@
 	[KEY_APPSELECT] = "AppSelect",
 	[KEY_SCREENSAVER] = "ScreenSaver",
 	[KEY_VOICECOMMAND] = "VoiceCommand",
+	[KEY_EMOJI_PICKER] = "EmojiPicker",
 	[KEY_BRIGHTNESS_MIN] = "BrightnessMin",
 	[KEY_BRIGHTNESS_MAX] = "BrightnessMax",
 	[KEY_BRIGHTNESS_AUTO] = "BrightnessAuto",
diff --git a/drivers/hid/hid-elan.c b/drivers/hid/hid-elan.c
index 45c4f88..dae1937 100644
--- a/drivers/hid/hid-elan.c
+++ b/drivers/hid/hid-elan.c
@@ -188,6 +188,7 @@
 	ret = input_mt_init_slots(input, ELAN_MAX_FINGERS, INPUT_MT_POINTER);
 	if (ret) {
 		hid_err(hdev, "Failed to init elan MT slots: %d\n", ret);
+		input_free_device(input);
 		return ret;
 	}
 
@@ -198,6 +199,7 @@
 	if (ret) {
 		hid_err(hdev, "Failed to register elan input device: %d\n",
 			ret);
+		input_mt_destroy_slots(input);
 		input_free_device(input);
 		return ret;
 	}
diff --git a/drivers/hid/hid-google-hammer.c b/drivers/hid/hid-google-hammer.c
index d86a918..505ed76 100644
--- a/drivers/hid/hid-google-hammer.c
+++ b/drivers/hid/hid-google-hammer.c
@@ -468,12 +468,16 @@
 
 static const struct hid_device_id hammer_devices[] = {
 	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
+		     USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_DON) },
+	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
 		     USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_HAMMER) },
 	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
 		     USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_MAGNEMITE) },
 	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
 		     USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_MASTERBALL) },
 	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
+		     USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_MOONBALL) },
+	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
 		     USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_STAFF) },
 	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
 		     USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_WAND) },
diff --git a/drivers/hid/hid-gt683r.c b/drivers/hid/hid-gt683r.c
index 898871c..29ccb0a 100644
--- a/drivers/hid/hid-gt683r.c
+++ b/drivers/hid/hid-gt683r.c
@@ -54,6 +54,7 @@
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GT683R_LED_PANEL) },
 	{ }
 };
+MODULE_DEVICE_TABLE(hid, gt683r_led_id);
 
 static void gt683r_brightness_set(struct led_classdev *led_cdev,
 				enum led_brightness brightness)
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 447e8db..6ed6158 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -79,10 +79,10 @@
 #define HID_DEVICE_ID_ALPS_U1_DUAL_PTP	0x121F
 #define HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP	0x1220
 #define HID_DEVICE_ID_ALPS_U1		0x1215
+#define HID_DEVICE_ID_ALPS_U1_UNICORN_LEGACY         0x121E
 #define HID_DEVICE_ID_ALPS_T4_BTNLESS	0x120C
 #define HID_DEVICE_ID_ALPS_1222		0x1222
 
-
 #define USB_VENDOR_ID_AMI		0x046b
 #define USB_DEVICE_ID_AMI_VIRT_KEYBOARD_AND_MOUSE	0xff10
 
@@ -337,6 +337,8 @@
 #define USB_DEVICE_ID_CYPRESS_BARCODE_4	0xed81
 #define USB_DEVICE_ID_CYPRESS_TRUETOUCH	0xc001
 
+#define USB_DEVICE_ID_CYPRESS_VARMILO_VA104M_07B1   0X07b1
+
 #define USB_VENDOR_ID_DATA_MODUL	0x7374
 #define USB_VENDOR_ID_DATA_MODUL_EASYMAXTOUCH	0x1201
 
@@ -363,6 +365,7 @@
 #define USB_DEVICE_ID_DRAGONRISE_DOLPHINBAR	0x1803
 #define USB_DEVICE_ID_DRAGONRISE_GAMECUBE1	0x1843
 #define USB_DEVICE_ID_DRAGONRISE_GAMECUBE2	0x1844
+#define USB_DEVICE_ID_DRAGONRISE_GAMECUBE3	0x1846
 
 #define USB_VENDOR_ID_DWAV		0x0eef
 #define USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER	0x0001
@@ -385,11 +388,13 @@
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349	0x7349
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7	0x73f7
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001	0xa001
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_C002	0xc002
 
 #define USB_VENDOR_ID_ELAN		0x04f3
 #define USB_DEVICE_ID_TOSHIBA_CLICK_L9W	0x0401
 #define USB_DEVICE_ID_HP_X2		0x074d
 #define USB_DEVICE_ID_HP_X2_10_COVER	0x0755
+#define USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN	0x2706
 
 #define USB_VENDOR_ID_ELECOM		0x056e
 #define USB_DEVICE_ID_ELECOM_BM084	0x0061
@@ -448,6 +453,10 @@
 #define USB_VENDOR_ID_FRUCTEL	0x25B6
 #define USB_DEVICE_ID_GAMETEL_MT_MODE	0x0002
 
+#define USB_VENDOR_ID_GAMEVICE	0x27F8
+#define USB_DEVICE_ID_GAMEVICE_GV186	0x0BBE
+#define USB_DEVICE_ID_GAMEVICE_KISHI	0x0BBF
+
 #define USB_VENDOR_ID_GAMERON		0x0810
 #define USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR	0x0001
 #define USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR	0x0002
@@ -478,6 +487,8 @@
 #define USB_DEVICE_ID_GOOGLE_WHISKERS	0x5030
 #define USB_DEVICE_ID_GOOGLE_MASTERBALL	0x503c
 #define USB_DEVICE_ID_GOOGLE_MAGNEMITE	0x503d
+#define USB_DEVICE_ID_GOOGLE_MOONBALL	0x5044
+#define USB_DEVICE_ID_GOOGLE_DON	0x5050
 
 #define USB_VENDOR_ID_GOTOP		0x08f2
 #define USB_DEVICE_ID_SUPER_Q2		0x007f
@@ -485,6 +496,7 @@
 #define USB_DEVICE_ID_PENPOWER		0x00f4
 
 #define USB_VENDOR_ID_GREENASIA		0x0e8f
+#define USB_DEVICE_ID_GREENASIA_DUAL_SAT_ADAPTOR 0x3010
 #define USB_DEVICE_ID_GREENASIA_DUAL_USB_JOYPAD	0x3013
 
 #define USB_VENDOR_ID_GRETAGMACBETH	0x0971
@@ -573,6 +585,7 @@
 #define USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_094A	0x094a
 #define USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_0941	0x0941
 #define USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_0641	0x0641
+#define USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_1f4a	0x1f4a
 
 #define USB_VENDOR_ID_HUION		0x256c
 #define USB_DEVICE_ID_HUION_TABLET	0x006e
@@ -617,6 +630,7 @@
 #define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081	0xa081
 #define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A0C2	0xa0c2
 #define USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A096	0xa096
+#define USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A293	0xa293
 
 #define USB_VENDOR_ID_IMATION		0x0718
 #define USB_DEVICE_ID_DISC_STAKKA	0xd000
@@ -628,8 +642,11 @@
 #define USB_DEVICE_ID_INNEX_GENESIS_ATARI	0x4745
 
 #define USB_VENDOR_ID_ITE               0x048d
+#define I2C_VENDOR_ID_ITE		0x103c
+#define I2C_DEVICE_ID_ITE_VOYO_WINPAD_A15	0x184f
 #define USB_DEVICE_ID_ITE_LENOVO_YOGA   0x8386
 #define USB_DEVICE_ID_ITE_LENOVO_YOGA2  0x8350
+#define I2C_DEVICE_ID_ITE_LENOVO_LEGION_Y720	0x837a
 #define USB_DEVICE_ID_ITE_LENOVO_YOGA900	0x8396
 #define USB_DEVICE_ID_ITE8595		0x8595
 
@@ -724,15 +741,22 @@
 #define USB_DEVICE_ID_LENOVO_X1_COVER	0x6085
 #define USB_DEVICE_ID_LENOVO_X1_TAB	0x60a3
 #define USB_DEVICE_ID_LENOVO_X1_TAB3	0x60b5
+#define USB_DEVICE_ID_LENOVO_OPTICAL_USB_MOUSE_600E	0x600e
+#define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_608D	0x608d
+#define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_6019	0x6019
+#define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_602E	0x602e
+#define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_6093	0x6093
 
 #define USB_VENDOR_ID_LG		0x1fd2
 #define USB_DEVICE_ID_LG_MULTITOUCH	0x0064
 #define USB_DEVICE_ID_LG_MELFAS_MT	0x6007
 #define I2C_DEVICE_ID_LG_8001		0x8001
+#define I2C_DEVICE_ID_LG_7010		0x7010
 
 #define USB_VENDOR_ID_LOGITECH		0x046d
 #define USB_DEVICE_ID_LOGITECH_AUDIOHUB 0x0a0e
 #define USB_DEVICE_ID_LOGITECH_T651	0xb00c
+#define USB_DEVICE_ID_LOGITECH_DINOVO_EDGE_KBD	0xb309
 #define USB_DEVICE_ID_LOGITECH_C007	0xc007
 #define USB_DEVICE_ID_LOGITECH_C077	0xc077
 #define USB_DEVICE_ID_LOGITECH_RECEIVER	0xc101
@@ -764,6 +788,7 @@
 #define USB_DEVICE_ID_LOGITECH_G27_WHEEL	0xc29b
 #define USB_DEVICE_ID_LOGITECH_WII_WHEEL	0xc29c
 #define USB_DEVICE_ID_LOGITECH_ELITE_KBD	0xc30a
+#define USB_DEVICE_ID_LOGITECH_GROUP_AUDIO	0x0882
 #define USB_DEVICE_ID_S510_RECEIVER	0xc50c
 #define USB_DEVICE_ID_S510_RECEIVER_2	0xc517
 #define USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500	0xc512
@@ -835,6 +860,7 @@
 #define USB_DEVICE_ID_MS_POWER_COVER     0x07da
 #define USB_DEVICE_ID_MS_XBOX_ONE_S_CONTROLLER	0x02fd
 #define USB_DEVICE_ID_MS_PIXART_MOUSE    0x00cb
+#define USB_DEVICE_ID_8BITDO_SN30_PRO_PLUS      0x02e0
 
 #define USB_VENDOR_ID_MOJO		0x8282
 #define USB_DEVICE_ID_RETRO_ADAPTER	0x3201
@@ -907,6 +933,7 @@
 #define USB_DEVICE_ID_ORTEK_IHOME_IMAC_A210S	0x8003
 
 #define USB_VENDOR_ID_PLANTRONICS	0x047f
+#define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3220_SERIES	0xc056
 
 #define USB_VENDOR_ID_PANASONIC		0x04da
 #define USB_DEVICE_ID_PANABOARD_UBT780	0x1044
@@ -959,6 +986,7 @@
 
 #define I2C_VENDOR_ID_RAYDIUM		0x2386
 #define I2C_PRODUCT_ID_RAYDIUM_4B33	0x4b33
+#define I2C_PRODUCT_ID_RAYDIUM_3118	0x3118
 
 #define USB_VENDOR_ID_RAZER            0x1532
 #define USB_DEVICE_ID_RAZER_BLADE_14   0x011D
@@ -988,6 +1016,8 @@
 #define USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO	0x3232
 #define USB_DEVICE_ID_ROCCAT_SAVU	0x2d5a
 
+#define USB_VENDOR_ID_SAI		0x17dd
+
 #define USB_VENDOR_ID_SAITEK		0x06a3
 #define USB_DEVICE_ID_SAITEK_RUMBLEPAD	0xff17
 #define USB_DEVICE_ID_SAITEK_PS1000	0x0621
@@ -997,6 +1027,9 @@
 #define USB_DEVICE_ID_SAITEK_RAT9	0x0cfa
 #define USB_DEVICE_ID_SAITEK_MMO7	0x0cd0
 #define USB_DEVICE_ID_SAITEK_X52	0x075c
+#define USB_DEVICE_ID_SAITEK_X52_2	0x0255
+#define USB_DEVICE_ID_SAITEK_X52_PRO	0x0762
+#define USB_DEVICE_ID_SAITEK_X65	0x0b6a
 
 #define USB_VENDOR_ID_SAMSUNG		0x0419
 #define USB_DEVICE_ID_SAMSUNG_IR_REMOTE	0x0001
@@ -1082,6 +1115,9 @@
 #define USB_DEVICE_ID_SYMBOL_SCANNER_2	0x1300
 #define USB_DEVICE_ID_SYMBOL_SCANNER_3	0x1200
 
+#define I2C_VENDOR_ID_SYNAPTICS     0x06cb
+#define I2C_PRODUCT_ID_SYNAPTICS_SYNA2393   0x7a13
+
 #define USB_VENDOR_ID_SYNAPTICS		0x06cb
 #define USB_DEVICE_ID_SYNAPTICS_TP	0x0001
 #define USB_DEVICE_ID_SYNAPTICS_INT_TP	0x0002
@@ -1096,7 +1132,10 @@
 #define USB_DEVICE_ID_SYNAPTICS_LTS2	0x1d10
 #define USB_DEVICE_ID_SYNAPTICS_HD	0x0ac3
 #define USB_DEVICE_ID_SYNAPTICS_QUAD_HD	0x1ac3
+#define USB_DEVICE_ID_SYNAPTICS_DELL_K12A	0x2819
+#define USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_012	0x2968
 #define USB_DEVICE_ID_SYNAPTICS_TP_V103	0x5710
+#define USB_DEVICE_ID_SYNAPTICS_ACER_ONE_S1003	0x73f5
 #define USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5	0x81a7
 
 #define USB_VENDOR_ID_TEXAS_INSTRUMENTS	0x2047
@@ -1135,6 +1174,9 @@
 #define USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8882	0x8882
 #define USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8883	0x8883
 
+#define USB_VENDOR_ID_TRUST             0x145f
+#define USB_DEVICE_ID_TRUST_PANORA_TABLET   0x0212
+
 #define USB_VENDOR_ID_TURBOX		0x062a
 #define USB_DEVICE_ID_TURBOX_KEYBOARD	0x0201
 #define USB_DEVICE_ID_ASUS_MD_5110	0x5110
@@ -1266,6 +1308,7 @@
 
 #define USB_VENDOR_ID_UGTIZER			0x2179
 #define USB_DEVICE_ID_UGTIZER_TABLET_GP0610	0x0053
+#define USB_DEVICE_ID_UGTIZER_TABLET_GT5040	0x0077
 
 #define USB_VENDOR_ID_VIEWSONIC			0x0543
 #define USB_DEVICE_ID_VIEWSONIC_PD1011		0xe621
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 63855f2..ea4c97f 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -319,6 +319,11 @@
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK,
 		USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD),
 	  HID_BATTERY_QUIRK_IGNORE },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
+		USB_DEVICE_ID_LOGITECH_DINOVO_EDGE_KBD),
+	  HID_BATTERY_QUIRK_IGNORE },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN),
+	  HID_BATTERY_QUIRK_IGNORE },
 	{}
 };
 
@@ -350,13 +355,13 @@
 	u8 *buf;
 	int ret;
 
-	buf = kmalloc(2, GFP_KERNEL);
+	buf = kmalloc(4, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
 
-	ret = hid_hw_raw_request(dev, dev->battery_report_id, buf, 2,
+	ret = hid_hw_raw_request(dev, dev->battery_report_id, buf, 4,
 				 dev->battery_report_type, HID_REQ_GET_REPORT);
-	if (ret != 2) {
+	if (ret < 2) {
 		kfree(buf);
 		return -ENODATA;
 	}
@@ -410,8 +415,6 @@
 
 		if (dev->battery_status == HID_BATTERY_UNKNOWN)
 			val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
-		else if (dev->battery_capacity == 100)
-			val->intval = POWER_SUPPLY_STATUS_FULL;
 		else
 			val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
 		break;
@@ -797,7 +800,7 @@
 		case 0x3b: /* Battery Strength */
 			hidinput_setup_battery(device, HID_INPUT_REPORT, field);
 			usage->type = EV_PWR;
-			goto ignore;
+			return;
 
 		case 0x3c: /* Invert */
 			map_key_clear(BTN_TOOL_RUBBER);
@@ -952,6 +955,9 @@
 
 		case 0x0cd: map_key_clear(KEY_PLAYPAUSE);	break;
 		case 0x0cf: map_key_clear(KEY_VOICECOMMAND);	break;
+
+		case 0x0d9: map_key_clear(KEY_EMOJI_PICKER);	break;
+
 		case 0x0e0: map_abs_clear(ABS_VOLUME);		break;
 		case 0x0e2: map_key_clear(KEY_MUTE);		break;
 		case 0x0e5: map_key_clear(KEY_BASSBOOST);	break;
@@ -1059,7 +1065,7 @@
 		case HID_DC_BATTERYSTRENGTH:
 			hidinput_setup_battery(device, HID_INPUT_REPORT, field);
 			usage->type = EV_PWR;
-			goto ignore;
+			return;
 		}
 		goto unknown;
 
@@ -1132,9 +1138,19 @@
 	}
 
 mapped:
-	if (device->driver->input_mapped && device->driver->input_mapped(device,
-				hidinput, field, usage, &bit, &max) < 0)
-		goto ignore;
+	/* Mapping failed, bail out */
+	if (!bit)
+		return;
+
+	if (device->driver->input_mapped &&
+	    device->driver->input_mapped(device, hidinput, field, usage,
+					 &bit, &max) < 0) {
+		/*
+		 * The driver indicated that no further generic handling
+		 * of the usage is desired.
+		 */
+		return;
+	}
 
 	set_bit(usage->type, input->evbit);
 
@@ -1215,9 +1231,11 @@
 		set_bit(MSC_SCAN, input->mscbit);
 	}
 
-ignore:
 	return;
 
+ignore:
+	usage->type = 0;
+	usage->code = 0;
 }
 
 static void hidinput_handle_scroll(struct hid_usage *usage,
diff --git a/drivers/hid/hid-ite.c b/drivers/hid/hid-ite.c
index a45f235..742c052 100644
--- a/drivers/hid/hid-ite.c
+++ b/drivers/hid/hid-ite.c
@@ -11,6 +11,48 @@
 
 #include "hid-ids.h"
 
+#define QUIRK_TOUCHPAD_ON_OFF_REPORT		BIT(0)
+
+static __u8 *ite_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize)
+{
+	unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
+
+	if (quirks & QUIRK_TOUCHPAD_ON_OFF_REPORT) {
+		if (*rsize == 188 && rdesc[162] == 0x81 && rdesc[163] == 0x02) {
+			hid_info(hdev, "Fixing up ITE keyboard report descriptor\n");
+			rdesc[163] = HID_MAIN_ITEM_RELATIVE;
+		}
+	}
+
+	return rdesc;
+}
+
+static int ite_input_mapping(struct hid_device *hdev,
+		struct hid_input *hi, struct hid_field *field,
+		struct hid_usage *usage, unsigned long **bit,
+		int *max)
+{
+
+	unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
+
+	if ((quirks & QUIRK_TOUCHPAD_ON_OFF_REPORT) &&
+	    (usage->hid & HID_USAGE_PAGE) == 0x00880000) {
+		if (usage->hid == 0x00880078) {
+			/* Touchpad on, userspace expects F22 for this */
+			hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_F22);
+			return 1;
+		}
+		if (usage->hid == 0x00880079) {
+			/* Touchpad off, userspace expects F23 for this */
+			hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_F23);
+			return 1;
+		}
+		return -1;
+	}
+
+	return 0;
+}
+
 static int ite_event(struct hid_device *hdev, struct hid_field *field,
 		     struct hid_usage *usage, __s32 value)
 {
@@ -37,9 +79,31 @@
 	return 0;
 }
 
+static int ite_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+	int ret;
+
+	hid_set_drvdata(hdev, (void *)id->driver_data);
+
+	ret = hid_open_report(hdev);
+	if (ret)
+		return ret;
+
+	return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+}
+
 static const struct hid_device_id ite_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE8595) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_258A, USB_DEVICE_ID_258A_6A88) },
+	/* ITE8595 USB kbd ctlr, with Synaptics touchpad connected to it. */
+	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
+		     USB_VENDOR_ID_SYNAPTICS,
+		     USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_012),
+	  .driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
+	/* ITE8910 USB kbd ctlr, with Synaptics touchpad connected to it. */
+	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
+		     USB_VENDOR_ID_SYNAPTICS,
+		     USB_DEVICE_ID_SYNAPTICS_ACER_ONE_S1003) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, ite_devices);
@@ -47,6 +111,9 @@
 static struct hid_driver ite_driver = {
 	.name = "itetech",
 	.id_table = ite_devices,
+	.probe = ite_probe,
+	.report_fixup = ite_report_fixup,
+	.input_mapping = ite_input_mapping,
 	.event = ite_event,
 };
 module_hid_driver(ite_driver);
diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index bb50d6e..b499ac3 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -328,7 +328,7 @@
 	0x25, 0x01,		/*      LOGICAL_MAX (1)                 */
 	0x75, 0x01,		/*      REPORT_SIZE (1)                 */
 	0x95, 0x04,		/*      REPORT_COUNT (4)                */
-	0x81, 0x06,		/*      INPUT                           */
+	0x81, 0x02,		/*      INPUT (Data,Var,Abs)            */
 	0xC0,			/*    END_COLLECTION                    */
 	0xC0,			/*  END_COLLECTION                      */
 };
@@ -866,11 +866,24 @@
 	schedule_work(&djrcv_dev->work);
 }
 
+/*
+ * Some quad/bluetooth keyboards have a builtin touchpad in this case we see
+ * only 1 paired device with a device_type of REPORT_TYPE_KEYBOARD. For the
+ * touchpad to work we must also forward mouse input reports to the dj_hiddev
+ * created for the keyboard (instead of forwarding them to a second paired
+ * device with a device_type of REPORT_TYPE_MOUSE as we normally would).
+ */
+static const u16 kbd_builtin_touchpad_ids[] = {
+	0xb309, /* Dinovo Edge */
+	0xb30c, /* Dinovo Mini */
+};
+
 static void logi_hidpp_dev_conn_notif_equad(struct hid_device *hdev,
 					    struct hidpp_event *hidpp_report,
 					    struct dj_workitem *workitem)
 {
 	struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
+	int i, id;
 
 	workitem->type = WORKITEM_TYPE_PAIRED;
 	workitem->device_type = hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] &
@@ -882,6 +895,13 @@
 		workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA |
 					       POWER_KEYS | MEDIA_CENTER |
 					       HIDPP;
+		id = (workitem->quad_id_msb << 8) | workitem->quad_id_lsb;
+		for (i = 0; i < ARRAY_SIZE(kbd_builtin_touchpad_ids); i++) {
+			if (id == kbd_builtin_touchpad_ids[i]) {
+				workitem->reports_supported |= STD_MOUSE;
+				break;
+			}
+		}
 		break;
 	case REPORT_TYPE_MOUSE:
 		workitem->reports_supported |= STD_MOUSE | HIDPP;
@@ -960,6 +980,7 @@
 	case 0x07:
 		device_type = "eQUAD step 4 Gaming";
 		logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
+		workitem.reports_supported |= STD_KEYBOARD;
 		break;
 	case 0x08:
 		device_type = "eQUAD step 4 for gamepads";
@@ -974,7 +995,12 @@
 		workitem.reports_supported |= STD_KEYBOARD;
 		break;
 	case 0x0d:
-		device_type = "eQUAD Lightspeed 1_1";
+		device_type = "eQUAD Lightspeed 1.1";
+		logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
+		workitem.reports_supported |= STD_KEYBOARD;
+		break;
+	case 0x0f:
+		device_type = "eQUAD Lightspeed 1.2";
 		logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
 		workitem.reports_supported |= STD_KEYBOARD;
 		break;
@@ -1842,6 +1868,10 @@
 	  HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
 		0xc531),
 	 .driver_data = recvr_type_gaming_hidpp},
+	{ /* Logitech G602 receiver (0xc537) */
+	  HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
+		0xc537),
+	 .driver_data = recvr_type_gaming_hidpp},
 	{ /* Logitech lightspeed receiver (0xc539) */
 	  HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
 		USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1),
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 8e91e2f..919551e 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -88,6 +88,8 @@
 #define HIDPP_CAPABILITY_BATTERY_MILEAGE	BIT(2)
 #define HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS	BIT(3)
 
+#define lg_map_key_clear(c)  hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
+
 /*
  * There are two hidpp protocols in use, the first version hidpp10 is known
  * as register access protocol or RAP, the second version hidpp20 is known as
@@ -1102,6 +1104,9 @@
 	ret = hidpp_send_fap_command_sync(hidpp, feature_index,
 					  CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_LEVEL_STATUS,
 					  NULL, 0, &response);
+	/* Ignore these intermittent errors */
+	if (ret == HIDPP_ERROR_RESOURCE_ERROR)
+		return -EIO;
 	if (ret > 0) {
 		hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
 			__func__, ret);
@@ -2766,6 +2771,26 @@
 }
 
 /* -------------------------------------------------------------------------- */
+/* Logitech Dinovo Mini keyboard with builtin touchpad                        */
+/* -------------------------------------------------------------------------- */
+#define DINOVO_MINI_PRODUCT_ID		0xb30c
+
+static int lg_dinovo_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
+		return 0;
+
+	switch (usage->hid & HID_USAGE) {
+	case 0x00d: lg_map_key_clear(KEY_MEDIA);	break;
+	default:
+		return 0;
+	}
+	return 1;
+}
+
+/* -------------------------------------------------------------------------- */
 /* HID++1.0 devices which use HID++ reports for their wheels                  */
 /* -------------------------------------------------------------------------- */
 static int hidpp10_wheel_connect(struct hidpp_device *hidpp)
@@ -2961,7 +2986,7 @@
 		multiplier = 1;
 
 	hidpp->vertical_wheel_counter.wheel_multiplier = multiplier;
-	hid_info(hidpp->hid_dev, "multiplier = %d\n", multiplier);
+	hid_dbg(hidpp->hid_dev, "wheel multiplier = %d\n", multiplier);
 	return 0;
 }
 
@@ -3000,6 +3025,9 @@
 			field->application != HID_GD_MOUSE)
 		return m560_input_mapping(hdev, hi, field, usage, bit, max);
 
+	if (hdev->product == DINOVO_MINI_PRODUCT_ID)
+		return lg_dinovo_input_mapping(hdev, hi, field, usage, bit, max);
+
 	return 0;
 }
 
@@ -3738,6 +3766,7 @@
 	  LDJ_DEVICE(0x405e), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
 	{ /* Mouse Logitech MX Anywhere 2 */
 	  LDJ_DEVICE(0x404a), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
+	{ LDJ_DEVICE(0x4072), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
 	{ LDJ_DEVICE(0xb013), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
 	{ LDJ_DEVICE(0xb018), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
 	{ LDJ_DEVICE(0xb01f), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
@@ -3760,6 +3789,9 @@
 	{ /* Keyboard MX5000 (Bluetooth-receiver in HID proxy mode) */
 	  LDJ_DEVICE(0xb305),
 	  .driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
+	{ /* Dinovo Edge (Bluetooth-receiver in HID proxy mode) */
+	  LDJ_DEVICE(0xb309),
+	  .driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
 	{ /* Keyboard MX5500 (Bluetooth-receiver in HID proxy mode) */
 	  LDJ_DEVICE(0xb30b),
 	  .driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
@@ -3802,6 +3834,9 @@
 	{ /* MX5000 keyboard over Bluetooth */
 	  HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb305),
 	  .driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
+	{ /* Dinovo Edge keyboard over Bluetooth */
+	  HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb309),
+	  .driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
 	{ /* MX5500 keyboard over Bluetooth */
 	  HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb30b),
 	  .driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index 3413866..fc4c074 100644
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -535,6 +535,12 @@
 		__set_bit(MSC_RAW, input->mscbit);
 	}
 
+	/*
+	 * hid-input may mark device as using autorepeat, but neither
+	 * the trackpad, nor the mouse actually want it.
+	 */
+	__clear_bit(EV_REP, input->evbit);
+
 	return 0;
 }
 
@@ -591,7 +597,7 @@
 	if (id->vendor == USB_VENDOR_ID_APPLE &&
 	    id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2 &&
 	    hdev->type != HID_TYPE_USBMOUSE)
-		return 0;
+		return -ENODEV;
 
 	msc = devm_kzalloc(&hdev->dev, sizeof(*msc), GFP_KERNEL);
 	if (msc == NULL) {
diff --git a/drivers/hid/hid-mf.c b/drivers/hid/hid-mf.c
index fc75f30..92d7ecd 100644
--- a/drivers/hid/hid-mf.c
+++ b/drivers/hid/hid-mf.c
@@ -153,6 +153,8 @@
 		.driver_data = HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE2),
 		.driver_data = 0 }, /* No quirk required */
+	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE3),
+		.driver_data = HID_QUIRK_MULTI_INPUT },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, mf_devices);
diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c
index 2d8b589..8cb1ca1 100644
--- a/drivers/hid/hid-microsoft.c
+++ b/drivers/hid/hid-microsoft.c
@@ -451,6 +451,8 @@
 		.driver_data = MS_SURFACE_DIAL },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_ONE_S_CONTROLLER),
 		.driver_data = MS_QUIRK_FF },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_8BITDO_SN30_PRO_PLUS),
+		.driver_data = MS_QUIRK_FF },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, ms_devices);
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 3cfeb16..37270b8 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -69,6 +69,7 @@
 #define MT_QUIRK_ASUS_CUSTOM_UP		BIT(17)
 #define MT_QUIRK_WIN8_PTP_BUTTONS	BIT(18)
 #define MT_QUIRK_SEPARATE_APP_REPORT	BIT(19)
+#define MT_QUIRK_FORCE_MULTI_INPUT	BIT(20)
 
 #define MT_INPUTMODE_TOUCHSCREEN	0x02
 #define MT_INPUTMODE_TOUCHPAD		0x03
@@ -189,6 +190,7 @@
 #define MT_CLS_WIN_8				0x0012
 #define MT_CLS_EXPORT_ALL_INPUTS		0x0013
 #define MT_CLS_WIN_8_DUAL			0x0014
+#define MT_CLS_WIN_8_FORCE_MULTI_INPUT		0x0015
 
 /* vendor specific classes */
 #define MT_CLS_3M				0x0101
@@ -279,6 +281,15 @@
 			MT_QUIRK_CONTACT_CNT_ACCURATE |
 			MT_QUIRK_WIN8_PTP_BUTTONS,
 		.export_all_inputs = true },
+	{ .name = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
+		.quirks = MT_QUIRK_ALWAYS_VALID |
+			MT_QUIRK_IGNORE_DUPLICATES |
+			MT_QUIRK_HOVERING |
+			MT_QUIRK_CONTACT_CNT_ACCURATE |
+			MT_QUIRK_STICKY_FINGERS |
+			MT_QUIRK_WIN8_PTP_BUTTONS |
+			MT_QUIRK_FORCE_MULTI_INPUT,
+		.export_all_inputs = true },
 
 	/*
 	 * vendor specific classes
@@ -600,9 +611,13 @@
 		if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
 			continue;
 
-		for (n = 0; n < field->report_count; n++) {
-			if (field->usage[n].hid == HID_DG_CONTACTID)
-				rdata->is_mt_collection = true;
+		if (field->logical == HID_DG_FINGER || td->hdev->group != HID_GROUP_MULTITOUCH_WIN_8) {
+			for (n = 0; n < field->report_count; n++) {
+				if (field->usage[n].hid == HID_DG_CONTACTID) {
+					rdata->is_mt_collection = true;
+					break;
+				}
+			}
 		}
 	}
 
@@ -853,6 +868,8 @@
 			code = BTN_0  + ((usage->hid - 1) & HID_USAGE);
 
 		hid_map_usage(hi, usage, bit, max, EV_KEY, code);
+		if (!*bit)
+			return -1;
 		input_set_capability(hi->input, EV_KEY, code);
 		return 1;
 
@@ -1019,7 +1036,7 @@
 		tool = MT_TOOL_DIAL;
 	else if (unlikely(!confidence_state)) {
 		tool = MT_TOOL_PALM;
-		if (!active &&
+		if (!active && mt &&
 		    input_mt_is_active(&mt->slots[slotnum])) {
 			/*
 			 * The non-confidence was reported for
@@ -1570,13 +1587,13 @@
 		/* we do not set suffix = "Touchscreen" */
 		hi->input->name = hdev->name;
 		break;
-	case HID_DG_STYLUS:
-		/* force BTN_STYLUS to allow tablet matching in udev */
-		__set_bit(BTN_STYLUS, hi->input->keybit);
-		break;
 	case HID_VD_ASUS_CUSTOM_MEDIA_KEYS:
 		suffix = "Custom Media Keys";
 		break;
+	case HID_DG_STYLUS:
+		/* force BTN_STYLUS to allow tablet matching in udev */
+		__set_bit(BTN_STYLUS, hi->input->keybit);
+		fallthrough;
 	case HID_DG_PEN:
 		suffix = "Stylus";
 		break;
@@ -1714,6 +1731,11 @@
 	if (id->group != HID_GROUP_MULTITOUCH_WIN_8)
 		hdev->quirks |= HID_QUIRK_MULTI_INPUT;
 
+	if (mtclass->quirks & MT_QUIRK_FORCE_MULTI_INPUT) {
+		hdev->quirks &= ~HID_QUIRK_INPUT_PER_APP;
+		hdev->quirks |= HID_QUIRK_MULTI_INPUT;
+	}
+
 	timer_setup(&td->release_timer, mt_expired_timeout, 0);
 
 	ret = hid_parse(hdev);
@@ -1922,6 +1944,14 @@
 	{ .driver_data = MT_CLS_EGALAX_SERIAL,
 		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
 			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
+	{ .driver_data = MT_CLS_EGALAX,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_C002) },
+
+	/* Elan devices */
+	{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
+		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
+			USB_VENDOR_ID_ELAN, 0x313a) },
 
 	/* Elitegroup panel */
 	{ .driver_data = MT_CLS_SERIAL,
@@ -1985,6 +2015,9 @@
 	{ .driver_data = MT_CLS_LG,
 		HID_USB_DEVICE(USB_VENDOR_ID_LG,
 			USB_DEVICE_ID_LG_MELFAS_MT) },
+	{ .driver_data = MT_CLS_LG,
+		HID_DEVICE(BUS_I2C, HID_GROUP_GENERIC,
+			USB_VENDOR_ID_LG, I2C_DEVICE_ID_LG_7010) },
 
 	/* MosArt panels */
 	{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
@@ -2050,6 +2083,15 @@
 		MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
 			USB_DEVICE_ID_MTP_STM)},
 
+	/* Synaptics devices */
+	{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
+		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
+			USB_VENDOR_ID_SYNAPTICS, 0xce08) },
+
+	{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
+		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
+			USB_VENDOR_ID_SYNAPTICS, 0xce09) },
+
 	/* TopSeed panels */
 	{ .driver_data = MT_CLS_TOPSEED,
 		MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
diff --git a/drivers/hid/hid-plantronics.c b/drivers/hid/hid-plantronics.c
index 85b685e..e81b7ce 100644
--- a/drivers/hid/hid-plantronics.c
+++ b/drivers/hid/hid-plantronics.c
@@ -13,6 +13,7 @@
 
 #include <linux/hid.h>
 #include <linux/module.h>
+#include <linux/jiffies.h>
 
 #define PLT_HID_1_0_PAGE	0xffa00000
 #define PLT_HID_2_0_PAGE	0xffa20000
@@ -36,6 +37,16 @@
 #define PLT_ALLOW_CONSUMER (field->application == HID_CP_CONSUMERCONTROL && \
 			    (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER)
 
+#define PLT_QUIRK_DOUBLE_VOLUME_KEYS BIT(0)
+
+#define PLT_DOUBLE_KEY_TIMEOUT 5 /* ms */
+
+struct plt_drv_data {
+	unsigned long device_type;
+	unsigned long last_volume_key_ts;
+	u32 quirks;
+};
+
 static int plantronics_input_mapping(struct hid_device *hdev,
 				     struct hid_input *hi,
 				     struct hid_field *field,
@@ -43,7 +54,8 @@
 				     unsigned long **bit, int *max)
 {
 	unsigned short mapped_key;
-	unsigned long plt_type = (unsigned long)hid_get_drvdata(hdev);
+	struct plt_drv_data *drv_data = hid_get_drvdata(hdev);
+	unsigned long plt_type = drv_data->device_type;
 
 	/* special case for PTT products */
 	if (field->application == HID_GD_JOYSTICK)
@@ -105,6 +117,30 @@
 	return 1;
 }
 
+static int plantronics_event(struct hid_device *hdev, struct hid_field *field,
+			     struct hid_usage *usage, __s32 value)
+{
+	struct plt_drv_data *drv_data = hid_get_drvdata(hdev);
+
+	if (drv_data->quirks & PLT_QUIRK_DOUBLE_VOLUME_KEYS) {
+		unsigned long prev_ts, cur_ts;
+
+		/* Usages are filtered in plantronics_usages. */
+
+		if (!value) /* Handle key presses only. */
+			return 0;
+
+		prev_ts = drv_data->last_volume_key_ts;
+		cur_ts = jiffies;
+		if (jiffies_to_msecs(cur_ts - prev_ts) <= PLT_DOUBLE_KEY_TIMEOUT)
+			return 1; /* Ignore the repeated key. */
+
+		drv_data->last_volume_key_ts = cur_ts;
+	}
+
+	return 0;
+}
+
 static unsigned long plantronics_device_type(struct hid_device *hdev)
 {
 	unsigned i, col_page;
@@ -133,15 +169,24 @@
 static int plantronics_probe(struct hid_device *hdev,
 			     const struct hid_device_id *id)
 {
+	struct plt_drv_data *drv_data;
 	int ret;
 
+	drv_data = devm_kzalloc(&hdev->dev, sizeof(*drv_data), GFP_KERNEL);
+	if (!drv_data)
+		return -ENOMEM;
+
 	ret = hid_parse(hdev);
 	if (ret) {
 		hid_err(hdev, "parse failed\n");
 		goto err;
 	}
 
-	hid_set_drvdata(hdev, (void *)plantronics_device_type(hdev));
+	drv_data->device_type = plantronics_device_type(hdev);
+	drv_data->quirks = id->driver_data;
+	drv_data->last_volume_key_ts = jiffies - msecs_to_jiffies(PLT_DOUBLE_KEY_TIMEOUT);
+
+	hid_set_drvdata(hdev, drv_data);
 
 	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
 		HID_CONNECT_HIDINPUT_FORCE | HID_CONNECT_HIDDEV_FORCE);
@@ -153,15 +198,26 @@
 }
 
 static const struct hid_device_id plantronics_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
+					 USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3220_SERIES),
+		.driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, plantronics_devices);
 
+static const struct hid_usage_id plantronics_usages[] = {
+	{ HID_CP_VOLUMEUP, EV_KEY, HID_ANY_ID },
+	{ HID_CP_VOLUMEDOWN, EV_KEY, HID_ANY_ID },
+	{ HID_TERMINATOR, HID_TERMINATOR, HID_TERMINATOR }
+};
+
 static struct hid_driver plantronics_driver = {
 	.name = "plantronics",
 	.id_table = plantronics_devices,
+	.usage_table = plantronics_usages,
 	.input_mapping = plantronics_input_mapping,
+	.event = plantronics_event,
 	.probe = plantronics_probe,
 };
 module_hid_driver(plantronics_driver);
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index c50bcd9..efc9d0d 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -72,6 +72,7 @@
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_REDRAGON_SEYMUR2), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_DOLPHINBAR), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE1), HID_QUIRK_MULTI_INPUT },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE3), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_WIIU), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER), HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET },
@@ -83,17 +84,24 @@
 	{ HID_USB_DEVICE(USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER), HID_QUIRK_NO_INIT_REPORTS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28), HID_QUIRK_NOGET },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_FUTABA, USB_DEVICE_ID_LED_DISPLAY), HID_QUIRK_NO_INIT_REPORTS },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, USB_DEVICE_ID_GREENASIA_DUAL_SAT_ADAPTOR), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, USB_DEVICE_ID_GREENASIA_DUAL_USB_JOYPAD), HID_QUIRK_MULTI_INPUT },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_GAMEVICE, USB_DEVICE_ID_GAMEVICE_GV186),
+		HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_GAMEVICE, USB_DEVICE_ID_GAMEVICE_KISHI),
+		HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING), HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING), HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING), HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A096), HID_QUIRK_NO_INIT_REPORTS },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A293), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0A4A), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0B4A), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_094A), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_0941), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_0641), HID_QUIRK_ALWAYS_POLL },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_1f4a), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM, USB_DEVICE_ID_IDEACOM_IDC6680), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_INNOMEDIA, USB_DEVICE_ID_INNEX_GENESIS_ATARI), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X), HID_QUIRK_MULTI_INPUT },
@@ -102,6 +110,11 @@
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_PENSKETCH_M912), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M406XE), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_PIXART_USB_OPTICAL_MOUSE_ID2), HID_QUIRK_ALWAYS_POLL },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_OPTICAL_USB_MOUSE_600E), HID_QUIRK_ALWAYS_POLL },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_608D), HID_QUIRK_ALWAYS_POLL },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_6019), HID_QUIRK_ALWAYS_POLL },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_602E), HID_QUIRK_ALWAYS_POLL },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_6093), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_C007), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_C077), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_KEYBOARD_G710_PLUS), HID_QUIRK_NOGET },
@@ -144,6 +157,9 @@
 	{ HID_USB_DEVICE(USB_VENDOR_ID_RETROUSB, USB_DEVICE_ID_RETROUSB_SNES_RETROPORT), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD), HID_QUIRK_BADPAD },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_X52), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_X52_2), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_X52_PRO), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_X65), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SEMICO, USB_DEVICE_ID_SEMICO_USB_KEYKOARD2), HID_QUIRK_NO_INIT_REPORTS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SEMICO, USB_DEVICE_ID_SEMICO_USB_KEYKOARD), HID_QUIRK_NO_INIT_REPORTS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB), HID_QUIRK_NOGET },
@@ -161,10 +177,12 @@
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS2), HID_QUIRK_NO_INIT_REPORTS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_QUAD_HD), HID_QUIRK_NO_INIT_REPORTS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP_V103), HID_QUIRK_NO_INIT_REPORTS },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DELL_K12A), HID_QUIRK_NO_INIT_REPORTS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD), HID_QUIRK_BADPAD },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TOUCHPACK, USB_DEVICE_ID_TOUCHPACK_RTS), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TPV, USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8882), HID_QUIRK_NOGET },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TPV, USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8883), HID_QUIRK_NOGET },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_TRUST, USB_DEVICE_ID_TRUST_PANORA_TABLET), HID_QUIRK_MULTI_INPUT | HID_QUIRK_HIDINPUT_FORCE },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD), HID_QUIRK_NOGET },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWA60), HID_QUIRK_MULTI_INPUT },
@@ -173,6 +191,8 @@
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS), HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD), HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE), HID_QUIRK_MULTI_INPUT },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_GROUP_AUDIO), HID_QUIRK_NOGET },
 
 	{ 0 }
 };
@@ -395,9 +415,6 @@
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A0C2) },
 #endif
-#if IS_ENABLED(CONFIG_HID_ITE)
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE8595) },
-#endif
 #if IS_ENABLED(CONFIG_HID_ICADE)
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
 #endif
@@ -477,6 +494,7 @@
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_DOLPHINBAR) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE1) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE2) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE3) },
 #endif
 #if IS_ENABLED(CONFIG_HID_MICROSOFT)
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
@@ -837,6 +855,7 @@
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PETZL, USB_DEVICE_ID_PETZL_HEADLAMP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_SAI, USB_DEVICE_ID_CYPRESS_HIDCOM) },
 #if IS_ENABLED(CONFIG_MOUSE_SYNAPTICS_USB)
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
index 7c6abd7..9ce22ac 100644
--- a/drivers/hid/hid-rmi.c
+++ b/drivers/hid/hid-rmi.c
@@ -744,7 +744,8 @@
 {
 	struct rmi_data *hdata = hid_get_drvdata(hdev);
 
-	if (hdata->device_flags & RMI_DEVICE) {
+	if ((hdata->device_flags & RMI_DEVICE)
+	    && test_bit(RMI_STARTED, &hdata->flags)) {
 		clear_bit(RMI_STARTED, &hdata->flags);
 		cancel_work_sync(&hdata->reset_work);
 		rmi_unregister_transport_device(&hdata->xport);
diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c
index 1a6e600..509b9bb 100644
--- a/drivers/hid/hid-roccat-kone.c
+++ b/drivers/hid/hid-roccat-kone.c
@@ -294,31 +294,40 @@
 	struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
 	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 	int retval = 0, difference, old_profile;
+	struct kone_settings *settings = (struct kone_settings *)buf;
 
 	/* I need to get my data in one piece */
 	if (off != 0 || count != sizeof(struct kone_settings))
 		return -EINVAL;
 
 	mutex_lock(&kone->kone_lock);
-	difference = memcmp(buf, &kone->settings, sizeof(struct kone_settings));
+	difference = memcmp(settings, &kone->settings,
+			    sizeof(struct kone_settings));
 	if (difference) {
-		retval = kone_set_settings(usb_dev,
-				(struct kone_settings const *)buf);
-		if (retval) {
-			mutex_unlock(&kone->kone_lock);
-			return retval;
+		if (settings->startup_profile < 1 ||
+		    settings->startup_profile > 5) {
+			retval = -EINVAL;
+			goto unlock;
 		}
 
+		retval = kone_set_settings(usb_dev, settings);
+		if (retval)
+			goto unlock;
+
 		old_profile = kone->settings.startup_profile;
-		memcpy(&kone->settings, buf, sizeof(struct kone_settings));
+		memcpy(&kone->settings, settings, sizeof(struct kone_settings));
 
 		kone_profile_activated(kone, kone->settings.startup_profile);
 
 		if (kone->settings.startup_profile != old_profile)
 			kone_profile_report(kone, kone->settings.startup_profile);
 	}
+unlock:
 	mutex_unlock(&kone->kone_lock);
 
+	if (retval)
+		return retval;
+
 	return sizeof(struct kone_settings);
 }
 static BIN_ATTR(settings, 0660, kone_sysfs_read_settings,
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 94c7398..f998314 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -210,16 +210,21 @@
 	buffer_size = buffer_size / sizeof(__s32);
 	if (buffer_size) {
 		for (i = 0; i < buffer_size; ++i) {
-			hid_set_field(report->field[field_index], i,
-				      (__force __s32)cpu_to_le32(*buf32));
+			ret = hid_set_field(report->field[field_index], i,
+					    (__force __s32)cpu_to_le32(*buf32));
+			if (ret)
+				goto done_proc;
+
 			++buf32;
 		}
 	}
 	if (remaining_bytes) {
 		value = 0;
 		memcpy(&value, (u8 *)buf32, remaining_bytes);
-		hid_set_field(report->field[field_index], i,
-			      (__force __s32)cpu_to_le32(value));
+		ret = hid_set_field(report->field[field_index], i,
+				    (__force __s32)cpu_to_le32(value));
+		if (ret)
+			goto done_proc;
 	}
 	hid_hw_request(hsdev->hdev, report, HID_REQ_SET_REPORT);
 	hid_hw_wait(hsdev->hdev);
@@ -483,7 +488,8 @@
 		return 1;
 
 	ptr = raw_data;
-	ptr++; /* Skip report id */
+	if (report->id)
+		ptr++; /* Skip report id */
 
 	spin_lock_irqsave(&pdata->lock, flags);
 
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 4c6ed6e..2f073f5 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -867,6 +867,23 @@
 	if (sc->quirks & PS3REMOTE)
 		return ps3remote_fixup(hdev, rdesc, rsize);
 
+	/*
+	 * Some knock-off USB dongles incorrectly report their button count
+	 * as 13 instead of 16 causing three non-functional buttons.
+	 */
+	if ((sc->quirks & SIXAXIS_CONTROLLER_USB) && *rsize >= 45 &&
+		/* Report Count (13) */
+		rdesc[23] == 0x95 && rdesc[24] == 0x0D &&
+		/* Usage Maximum (13) */
+		rdesc[37] == 0x29 && rdesc[38] == 0x0D &&
+		/* Report Count (3) */
+		rdesc[43] == 0x95 && rdesc[44] == 0x03) {
+		hid_info(hdev, "Fixing up USB dongle report descriptor\n");
+		rdesc[24] = 0x10;
+		rdesc[38] = 0x10;
+		rdesc[44] = 0x00;
+	}
+
 	return rdesc;
 }
 
diff --git a/drivers/hid/hid-steam.c b/drivers/hid/hid-steam.c
index 8dae0f9..a3b151b 100644
--- a/drivers/hid/hid-steam.c
+++ b/drivers/hid/hid-steam.c
@@ -526,7 +526,8 @@
 			steam_battery_register(steam);
 
 		mutex_lock(&steam_devices_lock);
-		list_add(&steam->list, &steam_devices);
+		if (list_empty(&steam->list))
+			list_add(&steam->list, &steam_devices);
 		mutex_unlock(&steam_devices_lock);
 	}
 
@@ -552,7 +553,7 @@
 		hid_info(steam->hdev, "Steam Controller '%s' disconnected",
 				steam->serial_no);
 		mutex_lock(&steam_devices_lock);
-		list_del(&steam->list);
+		list_del_init(&steam->list);
 		mutex_unlock(&steam_devices_lock);
 		steam->serial_no[0] = 0;
 	}
@@ -738,6 +739,7 @@
 	mutex_init(&steam->mutex);
 	steam->quirks = id->driver_data;
 	INIT_WORK(&steam->work_connect, steam_work_connect_cb);
+	INIT_LIST_HEAD(&steam->list);
 
 	steam->client_hdev = steam_create_client_hid(hdev);
 	if (IS_ERR(steam->client_hdev)) {
@@ -768,8 +770,12 @@
 
 	if (steam->quirks & STEAM_QUIRK_WIRELESS) {
 		hid_info(hdev, "Steam wireless receiver connected");
+		/* If using a wireless adaptor ask for connection status */
+		steam->connected = false;
 		steam_request_conn_status(steam);
 	} else {
+		/* A wired connection is always present */
+		steam->connected = true;
 		ret = steam_register(steam);
 		if (ret) {
 			hid_err(hdev,
diff --git a/drivers/hid/hid-uclogic-core.c b/drivers/hid/hid-uclogic-core.c
index 86b5680..8e9c9e6 100644
--- a/drivers/hid/hid-uclogic-core.c
+++ b/drivers/hid/hid-uclogic-core.c
@@ -385,6 +385,8 @@
 				USB_DEVICE_ID_UCLOGIC_DRAWIMAGE_G3) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UGTIZER,
 				USB_DEVICE_ID_UGTIZER_TABLET_GP0610) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_UGTIZER,
+				USB_DEVICE_ID_UGTIZER_TABLET_GT5040) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
 				USB_DEVICE_ID_UGEE_TABLET_G5) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE,
diff --git a/drivers/hid/hid-uclogic-params.c b/drivers/hid/hid-uclogic-params.c
index 78a364a..e80c812 100644
--- a/drivers/hid/hid-uclogic-params.c
+++ b/drivers/hid/hid-uclogic-params.c
@@ -997,6 +997,8 @@
 		break;
 	case VID_PID(USB_VENDOR_ID_UGTIZER,
 		     USB_DEVICE_ID_UGTIZER_TABLET_GP0610):
+	case VID_PID(USB_VENDOR_ID_UGTIZER,
+		     USB_DEVICE_ID_UGTIZER_TABLET_GT5040):
 	case VID_PID(USB_VENDOR_ID_UGEE,
 		     USB_DEVICE_ID_UGEE_XPPEN_TABLET_G540):
 	case VID_PID(USB_VENDOR_ID_UGEE,
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index bbc6ec1..b382c6b 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -249,13 +249,14 @@
 static __poll_t hidraw_poll(struct file *file, poll_table *wait)
 {
 	struct hidraw_list *list = file->private_data;
+	__poll_t mask = EPOLLOUT | EPOLLWRNORM; /* hidraw is always writable */
 
 	poll_wait(file, &list->hidraw->wait, wait);
 	if (list->head != list->tail)
-		return EPOLLIN | EPOLLRDNORM | EPOLLOUT;
+		mask |= EPOLLIN | EPOLLRDNORM;
 	if (!list->hidraw->exist)
-		return EPOLLERR | EPOLLHUP;
-	return 0;
+		mask |= EPOLLERR | EPOLLHUP;
+	return mask;
 }
 
 static int hidraw_open(struct inode *inode, struct file *file)
diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c
index 04c0881..ac076ac 100644
--- a/drivers/hid/i2c-hid/i2c-hid-core.c
+++ b/drivers/hid/i2c-hid/i2c-hid-core.c
@@ -48,6 +48,10 @@
 #define I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV	BIT(0)
 #define I2C_HID_QUIRK_NO_IRQ_AFTER_RESET	BIT(1)
 #define I2C_HID_QUIRK_BOGUS_IRQ			BIT(4)
+#define I2C_HID_QUIRK_RESET_ON_RESUME		BIT(5)
+#define I2C_HID_QUIRK_BAD_INPUT_SIZE		BIT(6)
+#define I2C_HID_QUIRK_NO_WAKEUP_AFTER_RESET	BIT(7)
+
 
 /* flags */
 #define I2C_HID_STARTED		0
@@ -170,7 +174,21 @@
 		I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV },
 	{ I2C_VENDOR_ID_HANTICK, I2C_PRODUCT_ID_HANTICK_5288,
 		I2C_HID_QUIRK_NO_IRQ_AFTER_RESET },
+	{ I2C_VENDOR_ID_ITE, I2C_DEVICE_ID_ITE_VOYO_WINPAD_A15,
+		I2C_HID_QUIRK_NO_IRQ_AFTER_RESET },
+	{ I2C_VENDOR_ID_RAYDIUM, I2C_PRODUCT_ID_RAYDIUM_3118,
+		I2C_HID_QUIRK_NO_IRQ_AFTER_RESET },
+	{ USB_VENDOR_ID_ALPS_JP, HID_ANY_ID,
+		 I2C_HID_QUIRK_RESET_ON_RESUME },
+	{ I2C_VENDOR_ID_SYNAPTICS, I2C_PRODUCT_ID_SYNAPTICS_SYNA2393,
+		 I2C_HID_QUIRK_RESET_ON_RESUME },
+	{ USB_VENDOR_ID_ITE, I2C_DEVICE_ID_ITE_LENOVO_LEGION_Y720,
+		I2C_HID_QUIRK_BAD_INPUT_SIZE },
+	/*
+	 * Sending the wakeup after reset actually break ELAN touchscreen controller
+	 */
 	{ USB_VENDOR_ID_ELAN, HID_ANY_ID,
+		 I2C_HID_QUIRK_NO_WAKEUP_AFTER_RESET |
 		 I2C_HID_QUIRK_BOGUS_IRQ },
 	{ 0, 0 }
 };
@@ -411,6 +429,19 @@
 		dev_err(&client->dev, "failed to change power setting.\n");
 
 set_pwr_exit:
+
+	/*
+	 * The HID over I2C specification states that if a DEVICE needs time
+	 * after the PWR_ON request, it should utilise CLOCK stretching.
+	 * However, it has been observered that the Windows driver provides a
+	 * 1ms sleep between the PWR_ON and RESET requests.
+	 * According to Goodix Windows even waits 60 ms after (other?)
+	 * PWR_ON requests. Testing has confirmed that several devices
+	 * will not work properly without a delay after a PWR_ON request.
+	 */
+	if (!ret && power_state == I2C_HID_PWR_ON)
+		msleep(60);
+
 	return ret;
 }
 
@@ -432,15 +463,6 @@
 	if (ret)
 		goto out_unlock;
 
-	/*
-	 * The HID over I2C specification states that if a DEVICE needs time
-	 * after the PWR_ON request, it should utilise CLOCK stretching.
-	 * However, it has been observered that the Windows driver provides a
-	 * 1ms sleep between the PWR_ON and RESET requests and that some devices
-	 * rely on this.
-	 */
-	usleep_range(1000, 5000);
-
 	i2c_hid_dbg(ihid, "resetting...\n");
 
 	ret = i2c_hid_command(client, &hid_reset_cmd, NULL, 0);
@@ -451,7 +473,8 @@
 	}
 
 	/* At least some SIS devices need this after reset */
-	ret = i2c_hid_set_power(client, I2C_HID_PWR_ON);
+	if (!(ihid->quirks & I2C_HID_QUIRK_NO_WAKEUP_AFTER_RESET))
+		ret = i2c_hid_set_power(client, I2C_HID_PWR_ON);
 
 out_unlock:
 	mutex_unlock(&ihid->reset_lock);
@@ -493,9 +516,15 @@
 	}
 
 	if ((ret_size > size) || (ret_size < 2)) {
-		dev_err(&ihid->client->dev, "%s: incomplete report (%d/%d)\n",
-			__func__, size, ret_size);
-		return;
+		if (ihid->quirks & I2C_HID_QUIRK_BAD_INPUT_SIZE) {
+			ihid->inbuf[0] = size & 0xff;
+			ihid->inbuf[1] = size >> 8;
+			ret_size = size;
+		} else {
+			dev_err(&ihid->client->dev, "%s: incomplete report (%d/%d)\n",
+				__func__, size, ret_size);
+			return;
+		}
 	}
 
 	i2c_hid_dbg(ihid, "input: %*ph\n", ret_size, ihid->inbuf);
@@ -1091,8 +1120,8 @@
 	hid->vendor = le16_to_cpu(ihid->hdesc.wVendorID);
 	hid->product = le16_to_cpu(ihid->hdesc.wProductID);
 
-	snprintf(hid->name, sizeof(hid->name), "%s %04hX:%04hX",
-		 client->name, hid->vendor, hid->product);
+	snprintf(hid->name, sizeof(hid->name), "%s %04X:%04X",
+		 client->name, (u16)hid->vendor, (u16)hid->product);
 	strlcpy(hid->phys, dev_name(&client->dev), sizeof(hid->phys));
 
 	ihid->quirks = i2c_hid_lookup_quirk(hid->vendor, hid->product);
@@ -1212,8 +1241,15 @@
 	 * solves "incomplete reports" on Raydium devices 2386:3118 and
 	 * 2386:4B33 and fixes various SIS touchscreens no longer sending
 	 * data after a suspend/resume.
+	 *
+	 * However some ALPS touchpads generate IRQ storm without reset, so
+	 * let's still reset them here.
 	 */
-	ret = i2c_hid_set_power(client, I2C_HID_PWR_ON);
+	if (ihid->quirks & I2C_HID_QUIRK_RESET_ON_RESUME)
+		ret = i2c_hid_hwreset(client);
+	else
+		ret = i2c_hid_set_power(client, I2C_HID_PWR_ON);
+
 	if (ret)
 		return ret;
 
diff --git a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
index d31ea82..8e0f674 100644
--- a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
+++ b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
@@ -342,6 +342,14 @@
 		.driver_data = (void *)&sipodev_desc
 	},
 	{
+		.ident = "Trekstor SURFBOOK E11B",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TREKSTOR"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SURFBOOK E11B"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	},
+	{
 		.ident = "Direkt-Tek DTLAPY116-2",
 		.matches = {
 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Direkt-Tek"),
@@ -366,6 +374,14 @@
 		.driver_data = (void *)&sipodev_desc
 	},
 	{
+		.ident = "Mediacom FlexBook edge 13",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "MEDIACOM"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "FlexBook_edge13-M-FBE13"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	},
+	{
 		.ident = "Odys Winbook 13",
 		.matches = {
 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AXDIA International GmbH"),
@@ -381,6 +397,22 @@
 		},
 		.driver_data = (void *)&sipodev_desc
 	},
+	{
+		.ident = "Schneider SCL142ALM",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "SCHNEIDER"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SCL142ALM"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	},
+	{
+		.ident = "Vero K147",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VERO"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "K147"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	},
 	{ }	/* Terminate list */
 };
 
diff --git a/drivers/hid/intel-ish-hid/ipc/hw-ish.h b/drivers/hid/intel-ish-hid/ipc/hw-ish.h
index 6c1e611..1fb294c 100644
--- a/drivers/hid/intel-ish-hid/ipc/hw-ish.h
+++ b/drivers/hid/intel-ish-hid/ipc/hw-ish.h
@@ -24,7 +24,9 @@
 #define ICL_MOBILE_DEVICE_ID	0x34FC
 #define SPT_H_DEVICE_ID		0xA135
 #define CML_LP_DEVICE_ID	0x02FC
+#define CMP_H_DEVICE_ID		0x06FC
 #define EHL_Ax_DEVICE_ID	0x4BB3
+#define TGL_LP_DEVICE_ID	0xA0FC
 
 #define	REVISION_ID_CHT_A0	0x6
 #define	REVISION_ID_CHT_Ax_SI	0x0
diff --git a/drivers/hid/intel-ish-hid/ipc/pci-ish.c b/drivers/hid/intel-ish-hid/ipc/pci-ish.c
index 784dcc8..f491d8b 100644
--- a/drivers/hid/intel-ish-hid/ipc/pci-ish.c
+++ b/drivers/hid/intel-ish-hid/ipc/pci-ish.c
@@ -34,7 +34,9 @@
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, ICL_MOBILE_DEVICE_ID)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, SPT_H_DEVICE_ID)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, CML_LP_DEVICE_ID)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, CMP_H_DEVICE_ID)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, EHL_Ax_DEVICE_ID)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, TGL_LP_DEVICE_ID)},
 	{0, }
 };
 MODULE_DEVICE_TABLE(pci, ish_pci_tbl);
diff --git a/drivers/hid/intel-ish-hid/ishtp-fw-loader.c b/drivers/hid/intel-ish-hid/ishtp-fw-loader.c
index aa2dbed..6cf59fd 100644
--- a/drivers/hid/intel-ish-hid/ishtp-fw-loader.c
+++ b/drivers/hid/intel-ish-hid/ishtp-fw-loader.c
@@ -480,6 +480,7 @@
 			    sizeof(ldr_xfer_query_resp));
 	if (rv < 0) {
 		client_data->flag_retry = true;
+		*fw_info = (struct shim_fw_info){};
 		return rv;
 	}
 
@@ -489,6 +490,7 @@
 			"data size %d is not equal to size of loader_xfer_query_response %zu\n",
 			rv, sizeof(struct loader_xfer_query_response));
 		client_data->flag_retry = true;
+		*fw_info = (struct shim_fw_info){};
 		return -EMSGSIZE;
 	}
 
diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index fa0cc08..8fe3efc 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -766,13 +766,14 @@
 static __poll_t uhid_char_poll(struct file *file, poll_table *wait)
 {
 	struct uhid_device *uhid = file->private_data;
+	__poll_t mask = EPOLLOUT | EPOLLWRNORM; /* uhid is always writable */
 
 	poll_wait(file, &uhid->waitq, wait);
 
 	if (uhid->head != uhid->tail)
-		return EPOLLIN | EPOLLRDNORM;
+		mask |= EPOLLIN | EPOLLRDNORM;
 
-	return 0;
+	return mask;
 }
 
 static const struct file_operations uhid_fops = {
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index c7bc9db..1cfbbaf 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -374,7 +374,7 @@
 	raw_report = usbhid->ctrl[usbhid->ctrltail].raw_report;
 	dir = usbhid->ctrl[usbhid->ctrltail].dir;
 
-	len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
+	len = hid_report_len(report);
 	if (dir == USB_DIR_OUT) {
 		usbhid->urbctrl->pipe = usb_sndctrlpipe(hid_to_usb_dev(hid), 0);
 		usbhid->urbctrl->transfer_buffer_length = len;
@@ -682,16 +682,21 @@
 	struct usbhid_device *usbhid = hid->driver_data;
 	int res;
 
+	mutex_lock(&usbhid->mutex);
+
 	set_bit(HID_OPENED, &usbhid->iofl);
 
-	if (hid->quirks & HID_QUIRK_ALWAYS_POLL)
-		return 0;
+	if (hid->quirks & HID_QUIRK_ALWAYS_POLL) {
+		res = 0;
+		goto Done;
+	}
 
 	res = usb_autopm_get_interface(usbhid->intf);
 	/* the device must be awake to reliably request remote wakeup */
 	if (res < 0) {
 		clear_bit(HID_OPENED, &usbhid->iofl);
-		return -EIO;
+		res = -EIO;
+		goto Done;
 	}
 
 	usbhid->intf->needs_remote_wakeup = 1;
@@ -725,6 +730,9 @@
 		msleep(50);
 
 	clear_bit(HID_RESUME_RUNNING, &usbhid->iofl);
+
+ Done:
+	mutex_unlock(&usbhid->mutex);
 	return res;
 }
 
@@ -732,6 +740,8 @@
 {
 	struct usbhid_device *usbhid = hid->driver_data;
 
+	mutex_lock(&usbhid->mutex);
+
 	/*
 	 * Make sure we don't restart data acquisition due to
 	 * a resumption we no longer care about by avoiding racing
@@ -743,12 +753,13 @@
 		clear_bit(HID_IN_POLLING, &usbhid->iofl);
 	spin_unlock_irq(&usbhid->lock);
 
-	if (hid->quirks & HID_QUIRK_ALWAYS_POLL)
-		return;
+	if (!(hid->quirks & HID_QUIRK_ALWAYS_POLL)) {
+		hid_cancel_delayed_stuff(usbhid);
+		usb_kill_urb(usbhid->urbin);
+		usbhid->intf->needs_remote_wakeup = 0;
+	}
 
-	hid_cancel_delayed_stuff(usbhid);
-	usb_kill_urb(usbhid->urbin);
-	usbhid->intf->needs_remote_wakeup = 0;
+	mutex_unlock(&usbhid->mutex);
 }
 
 /*
@@ -1057,6 +1068,8 @@
 	unsigned int n, insize = 0;
 	int ret;
 
+	mutex_lock(&usbhid->mutex);
+
 	clear_bit(HID_DISCONNECTED, &usbhid->iofl);
 
 	usbhid->bufsize = HID_MIN_BUFFER_SIZE;
@@ -1177,6 +1190,8 @@
 		usbhid_set_leds(hid);
 		device_set_wakeup_enable(&dev->dev, 1);
 	}
+
+	mutex_unlock(&usbhid->mutex);
 	return 0;
 
 fail:
@@ -1187,6 +1202,7 @@
 	usbhid->urbout = NULL;
 	usbhid->urbctrl = NULL;
 	hid_free_buffers(dev, hid);
+	mutex_unlock(&usbhid->mutex);
 	return ret;
 }
 
@@ -1202,6 +1218,8 @@
 		usbhid->intf->needs_remote_wakeup = 0;
 	}
 
+	mutex_lock(&usbhid->mutex);
+
 	clear_bit(HID_STARTED, &usbhid->iofl);
 	spin_lock_irq(&usbhid->lock);	/* Sync with error and led handlers */
 	set_bit(HID_DISCONNECTED, &usbhid->iofl);
@@ -1222,6 +1240,8 @@
 	usbhid->urbout = NULL;
 
 	hid_free_buffers(hid_to_usb_dev(hid), hid);
+
+	mutex_unlock(&usbhid->mutex);
 }
 
 static int usbhid_power(struct hid_device *hid, int lvl)
@@ -1382,6 +1402,7 @@
 	INIT_WORK(&usbhid->reset_work, hid_reset);
 	timer_setup(&usbhid->io_retry, hid_retry_timeout, 0);
 	spin_lock_init(&usbhid->lock);
+	mutex_init(&usbhid->mutex);
 
 	ret = hid_add_device(hid);
 	if (ret) {
diff --git a/drivers/hid/usbhid/hid-pidff.c b/drivers/hid/usbhid/hid-pidff.c
index fddac7c..07a9fe9 100644
--- a/drivers/hid/usbhid/hid-pidff.c
+++ b/drivers/hid/usbhid/hid-pidff.c
@@ -1292,6 +1292,7 @@
 
 	if (pidff->pool[PID_DEVICE_MANAGED_POOL].value &&
 	    pidff->pool[PID_DEVICE_MANAGED_POOL].value[0] == 0) {
+		error = -EPERM;
 		hid_notice(hid,
 			   "device does not support device managed pool\n");
 		goto fail;
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 1f9bc44..4711fb1 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -241,12 +241,51 @@
 	return 0;
 }
 
+static int __hiddev_open(struct hiddev *hiddev, struct file *file)
+{
+	struct hiddev_list *list;
+	int error;
+
+	lockdep_assert_held(&hiddev->existancelock);
+
+	list = vzalloc(sizeof(*list));
+	if (!list)
+		return -ENOMEM;
+
+	mutex_init(&list->thread_lock);
+	list->hiddev = hiddev;
+
+	if (!hiddev->open++) {
+		error = hid_hw_power(hiddev->hid, PM_HINT_FULLON);
+		if (error < 0)
+			goto err_drop_count;
+
+		error = hid_hw_open(hiddev->hid);
+		if (error < 0)
+			goto err_normal_power;
+	}
+
+	spin_lock_irq(&hiddev->list_lock);
+	list_add_tail(&list->node, &hiddev->list);
+	spin_unlock_irq(&hiddev->list_lock);
+
+	file->private_data = list;
+
+	return 0;
+
+err_normal_power:
+	hid_hw_power(hiddev->hid, PM_HINT_NORMAL);
+err_drop_count:
+	hiddev->open--;
+	vfree(list);
+	return error;
+}
+
 /*
  * open file op
  */
 static int hiddev_open(struct inode *inode, struct file *file)
 {
-	struct hiddev_list *list;
 	struct usb_interface *intf;
 	struct hid_device *hid;
 	struct hiddev *hiddev;
@@ -255,66 +294,14 @@
 	intf = usbhid_find_interface(iminor(inode));
 	if (!intf)
 		return -ENODEV;
+
 	hid = usb_get_intfdata(intf);
 	hiddev = hid->hiddev;
 
-	if (!(list = vzalloc(sizeof(struct hiddev_list))))
-		return -ENOMEM;
-	mutex_init(&list->thread_lock);
-	list->hiddev = hiddev;
-	file->private_data = list;
-
-	/*
-	 * no need for locking because the USB major number
-	 * is shared which usbcore guards against disconnect
-	 */
-	if (list->hiddev->exist) {
-		if (!list->hiddev->open++) {
-			res = hid_hw_open(hiddev->hid);
-			if (res < 0)
-				goto bail;
-		}
-	} else {
-		res = -ENODEV;
-		goto bail;
-	}
-
-	spin_lock_irq(&list->hiddev->list_lock);
-	list_add_tail(&list->node, &hiddev->list);
-	spin_unlock_irq(&list->hiddev->list_lock);
-
 	mutex_lock(&hiddev->existancelock);
-	/*
-	 * recheck exist with existance lock held to
-	 * avoid opening a disconnected device
-	 */
-	if (!list->hiddev->exist) {
-		res = -ENODEV;
-		goto bail_unlock;
-	}
-	if (!list->hiddev->open++)
-		if (list->hiddev->exist) {
-			struct hid_device *hid = hiddev->hid;
-			res = hid_hw_power(hid, PM_HINT_FULLON);
-			if (res < 0)
-				goto bail_unlock;
-			res = hid_hw_open(hid);
-			if (res < 0)
-				goto bail_normal_power;
-		}
-	mutex_unlock(&hiddev->existancelock);
-	return 0;
-bail_normal_power:
-	hid_hw_power(hid, PM_HINT_NORMAL);
-bail_unlock:
+	res = hiddev->exist ? __hiddev_open(hiddev, file) : -ENODEV;
 	mutex_unlock(&hiddev->existancelock);
 
-	spin_lock_irq(&list->hiddev->list_lock);
-	list_del(&list->node);
-	spin_unlock_irq(&list->hiddev->list_lock);
-bail:
-	file->private_data = NULL;
-	vfree(list);
 	return res;
 }
 
@@ -532,12 +519,16 @@
 
 		switch (cmd) {
 		case HIDIOCGUSAGE:
+			if (uref->usage_index >= field->report_count)
+				goto inval;
 			uref->value = field->value[uref->usage_index];
 			if (copy_to_user(user_arg, uref, sizeof(*uref)))
 				goto fault;
 			goto goodreturn;
 
 		case HIDIOCSUSAGE:
+			if (uref->usage_index >= field->report_count)
+				goto inval;
 			field->value[uref->usage_index] = uref->value;
 			goto goodreturn;
 
@@ -954,9 +945,9 @@
 	hiddev->exist = 0;
 
 	if (hiddev->open) {
-		mutex_unlock(&hiddev->existancelock);
 		hid_hw_close(hiddev->hid);
 		wake_up_interruptible(&hiddev->wait);
+		mutex_unlock(&hiddev->existancelock);
 	} else {
 		mutex_unlock(&hiddev->existancelock);
 		kfree(hiddev);
diff --git a/drivers/hid/usbhid/usbhid.h b/drivers/hid/usbhid/usbhid.h
index 8620408..75fe85d 100644
--- a/drivers/hid/usbhid/usbhid.h
+++ b/drivers/hid/usbhid/usbhid.h
@@ -80,6 +80,7 @@
 	dma_addr_t outbuf_dma;                                          /* Output buffer dma */
 	unsigned long last_out;							/* record of last output for timeouts */
 
+	struct mutex mutex;						/* start/stop/open/close */
 	spinlock_t lock;						/* fifo spinlock */
 	unsigned long iofl;                                             /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */
 	struct timer_list io_retry;                                     /* Retry timer */
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 5ded94b..73dafa6 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -147,9 +147,9 @@
 	}
 
 	if (flush)
-		wacom_wac_queue_flush(hdev, &wacom_wac->pen_fifo);
+		wacom_wac_queue_flush(hdev, wacom_wac->pen_fifo);
 	else if (insert)
-		wacom_wac_queue_insert(hdev, &wacom_wac->pen_fifo,
+		wacom_wac_queue_insert(hdev, wacom_wac->pen_fifo,
 				       raw_data, report_size);
 
 	return insert && !flush;
@@ -319,9 +319,11 @@
 			data[0] = field->report->id;
 			ret = wacom_get_report(hdev, HID_FEATURE_REPORT,
 					       data, n, WAC_CMD_RETRIES);
-			if (ret == n) {
+			if (ret == n && features->type == HID_GENERIC) {
 				ret = hid_report_raw_event(hdev,
 					HID_FEATURE_REPORT, data, n, 0);
+			} else if (ret == 2 && features->type != HID_GENERIC) {
+				features->touch_max = data[1];
 			} else {
 				features->touch_max = 16;
 				hid_warn(hdev, "wacom_feature_mapping: "
@@ -1268,6 +1270,38 @@
 					       group);
 }
 
+static void wacom_devm_kfifo_release(struct device *dev, void *res)
+{
+	struct kfifo_rec_ptr_2 *devres = res;
+
+	kfifo_free(devres);
+}
+
+static int wacom_devm_kfifo_alloc(struct wacom *wacom)
+{
+	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+	struct kfifo_rec_ptr_2 *pen_fifo;
+	int error;
+
+	pen_fifo = devres_alloc(wacom_devm_kfifo_release,
+			      sizeof(struct kfifo_rec_ptr_2),
+			      GFP_KERNEL);
+
+	if (!pen_fifo)
+		return -ENOMEM;
+
+	error = kfifo_alloc(pen_fifo, WACOM_PKGLEN_MAX, GFP_KERNEL);
+	if (error) {
+		devres_free(pen_fifo);
+		return error;
+	}
+
+	devres_add(&wacom->hdev->dev, pen_fifo);
+	wacom_wac->pen_fifo = pen_fifo;
+
+	return 0;
+}
+
 enum led_brightness wacom_leds_brightness_get(struct wacom_led *led)
 {
 	struct wacom *wacom = led->wacom;
@@ -2722,7 +2756,7 @@
 	if (features->check_for_hid_type && features->hid_type != hdev->type)
 		return -ENODEV;
 
-	error = kfifo_alloc(&wacom_wac->pen_fifo, WACOM_PKGLEN_MAX, GFP_KERNEL);
+	error = wacom_devm_kfifo_alloc(wacom);
 	if (error)
 		return error;
 
@@ -2784,8 +2818,6 @@
 
 	if (wacom->wacom_wac.features.type != REMOTE)
 		wacom_release_resources(wacom);
-
-	kfifo_free(&wacom_wac->pen_fifo);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index ccb7452..d5425bc 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1427,11 +1427,13 @@
 {
 	struct input_dev *pad_input = wacom->pad_input;
 	unsigned char *data = wacom->data;
+	int nbuttons = wacom->features.numbered_buttons;
 
-	int buttons = data[282] | ((data[281] & 0x40) << 2);
+	int expresskeys = data[282];
+	int center = (data[281] & 0x40) >> 6;
 	int ring = data[285] & 0x7F;
 	bool ringstatus = data[285] & 0x80;
-	bool prox = buttons || ringstatus;
+	bool prox = expresskeys || center || ringstatus;
 
 	/* Fix touchring data: userspace expects 0 at left and increasing clockwise */
 	ring = 71 - ring;
@@ -1439,7 +1441,8 @@
 	if (ring > 71)
 		ring -= 72;
 
-	wacom_report_numbered_buttons(pad_input, 9, buttons);
+	wacom_report_numbered_buttons(pad_input, nbuttons,
+                                      expresskeys | (center << (nbuttons - 1)));
 
 	input_report_abs(pad_input, ABS_WHEEL, ringstatus ? ring : 0);
 
@@ -2096,14 +2099,16 @@
 		    (hdev->product == 0x34d || hdev->product == 0x34e ||  /* MobileStudio Pro */
 		     hdev->product == 0x357 || hdev->product == 0x358 ||  /* Intuos Pro 2 */
 		     hdev->product == 0x392 ||				  /* Intuos Pro 2 */
-		     hdev->product == 0x398 || hdev->product == 0x399)) { /* MobileStudio Pro */
+		     hdev->product == 0x398 || hdev->product == 0x399 ||  /* MobileStudio Pro */
+		     hdev->product == 0x3AA)) {				  /* MobileStudio Pro */
 			value = (field->logical_maximum - value);
 
 			if (hdev->product == 0x357 || hdev->product == 0x358 ||
 			    hdev->product == 0x392)
 				value = wacom_offset_rotation(input, usage, value, 3, 16);
 			else if (hdev->product == 0x34d || hdev->product == 0x34e ||
-				 hdev->product == 0x398 || hdev->product == 0x399)
+				 hdev->product == 0x398 || hdev->product == 0x399 ||
+				 hdev->product == 0x3AA)
 				value = wacom_offset_rotation(input, usage, value, 1, 2);
 		}
 		else {
@@ -2528,7 +2533,7 @@
 	    !wacom_wac->shared->is_touch_on) {
 		if (!wacom_wac->shared->touch_down)
 			return;
-		prox = 0;
+		prox = false;
 	}
 
 	wacom_wac->hid_data.num_received++;
@@ -2595,7 +2600,12 @@
 		wacom_wac->is_invalid_bt_frame = !value;
 		return;
 	case HID_DG_CONTACTMAX:
-		features->touch_max = value;
+		if (!features->touch_max) {
+			features->touch_max = value;
+		} else {
+			hid_warn(hdev, "%s: ignoring attempt to overwrite non-zero touch_max "
+				 "%d -> %d\n", __func__, features->touch_max, value);
+		}
 		return;
 	}
 
@@ -2635,9 +2645,25 @@
 			case HID_DG_TIPSWITCH:
 				hid_data->last_slot_field = equivalent_usage;
 				break;
+			case HID_DG_CONTACTCOUNT:
+				hid_data->cc_report = report->id;
+				hid_data->cc_index = i;
+				hid_data->cc_value_index = j;
+				break;
 			}
 		}
 	}
+
+	if (hid_data->cc_report != 0 &&
+	    hid_data->cc_index >= 0) {
+		struct hid_field *field = report->field[hid_data->cc_index];
+		int value = field->value[hid_data->cc_value_index];
+		if (value)
+			hid_data->num_expected = value;
+	}
+	else {
+		hid_data->num_expected = wacom_wac->features.touch_max;
+	}
 }
 
 static void wacom_wac_finger_report(struct hid_device *hdev,
@@ -2647,7 +2673,6 @@
 	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
 	struct input_dev *input = wacom_wac->touch_input;
 	unsigned touch_max = wacom_wac->features.touch_max;
-	struct hid_data *hid_data = &wacom_wac->hid_data;
 
 	/* If more packets of data are expected, give us a chance to
 	 * process them rather than immediately syncing a partial
@@ -2661,7 +2686,6 @@
 
 	input_sync(input);
 	wacom_wac->hid_data.num_received = 0;
-	hid_data->num_expected = 0;
 
 	/* keep touch state for pen event */
 	wacom_wac->shared->touch_down = wacom_wac_finger_count_touches(wacom_wac);
@@ -2736,73 +2760,12 @@
 	}
 }
 
-static void wacom_set_num_expected(struct hid_device *hdev,
-				   struct hid_report *report,
-				   int collection_index,
-				   struct hid_field *field,
-				   int field_index)
-{
-	struct wacom *wacom = hid_get_drvdata(hdev);
-	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
-	struct hid_data *hid_data = &wacom_wac->hid_data;
-	unsigned int original_collection_level =
-		hdev->collection[collection_index].level;
-	bool end_collection = false;
-	int i;
-
-	if (hid_data->num_expected)
-		return;
-
-	// find the contact count value for this segment
-	for (i = field_index; i < report->maxfield && !end_collection; i++) {
-		struct hid_field *field = report->field[i];
-		unsigned int field_level =
-			hdev->collection[field->usage[0].collection_index].level;
-		unsigned int j;
-
-		if (field_level != original_collection_level)
-			continue;
-
-		for (j = 0; j < field->maxusage; j++) {
-			struct hid_usage *usage = &field->usage[j];
-
-			if (usage->collection_index != collection_index) {
-				end_collection = true;
-				break;
-			}
-			if (wacom_equivalent_usage(usage->hid) == HID_DG_CONTACTCOUNT) {
-				hid_data->cc_report = report->id;
-				hid_data->cc_index = i;
-				hid_data->cc_value_index = j;
-
-				if (hid_data->cc_report != 0 &&
-				    hid_data->cc_index >= 0) {
-
-					struct hid_field *field =
-						report->field[hid_data->cc_index];
-					int value =
-						field->value[hid_data->cc_value_index];
-
-					if (value)
-						hid_data->num_expected = value;
-				}
-			}
-		}
-	}
-
-	if (hid_data->cc_report == 0 || hid_data->cc_index < 0)
-		hid_data->num_expected = wacom_wac->features.touch_max;
-}
-
 static int wacom_wac_collection(struct hid_device *hdev, struct hid_report *report,
 			 int collection_index, struct hid_field *field,
 			 int field_index)
 {
 	struct wacom *wacom = hid_get_drvdata(hdev);
 
-	if (WACOM_FINGER_FIELD(field))
-		wacom_set_num_expected(hdev, report, collection_index, field,
-				       field_index);
 	wacom_report_events(hdev, report, collection_index, field_index);
 
 	/*
@@ -2815,7 +2778,9 @@
 	if (report->type != HID_INPUT_REPORT)
 		return -1;
 
-	if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
+	if (WACOM_PAD_FIELD(field))
+		return 0;
+	else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
 		wacom_wac_pen_report(hdev, report);
 	else if (WACOM_FINGER_FIELD(field) && wacom->wacom_wac.touch_input)
 		wacom_wac_finger_report(hdev, report);
@@ -3609,8 +3574,6 @@
 {
 	struct wacom_features *features = &wacom_wac->features;
 
-	input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
-
 	if (!(features->device_type & WACOM_DEVICETYPE_PEN))
 		return -ENODEV;
 
@@ -3625,6 +3588,7 @@
 		return 0;
 	}
 
+	input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 	__set_bit(BTN_TOUCH, input_dev->keybit);
 	__set_bit(ABS_MISC, input_dev->absbit);
 
@@ -3777,8 +3741,6 @@
 {
 	struct wacom_features *features = &wacom_wac->features;
 
-	input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
-
 	if (!(features->device_type & WACOM_DEVICETYPE_TOUCH))
 		return -ENODEV;
 
@@ -3791,6 +3753,7 @@
 		/* setup has already been done */
 		return 0;
 
+	input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 	__set_bit(BTN_TOUCH, input_dev->keybit);
 
 	if (features->touch_max == 1) {
@@ -3866,7 +3829,7 @@
 		    wacom_wac->shared->touch->product == 0xF6) {
 			input_dev->evbit[0] |= BIT_MASK(EV_SW);
 			__set_bit(SW_MUTE_DEVICE, input_dev->swbit);
-			wacom_wac->shared->has_mute_touch_switch = true;
+			wacom_wac->has_mute_touch_switch = true;
 		}
 		/* fall through */
 
diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index da612b6..e383540 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -122,7 +122,7 @@
 #define WACOM_HID_WD_TOUCHONOFF         (WACOM_HID_UP_WACOMDIGITIZER | 0x0454)
 #define WACOM_HID_WD_BATTERY_LEVEL      (WACOM_HID_UP_WACOMDIGITIZER | 0x043b)
 #define WACOM_HID_WD_EXPRESSKEY00       (WACOM_HID_UP_WACOMDIGITIZER | 0x0910)
-#define WACOM_HID_WD_EXPRESSKEYCAP00    (WACOM_HID_UP_WACOMDIGITIZER | 0x0950)
+#define WACOM_HID_WD_EXPRESSKEYCAP00    (WACOM_HID_UP_WACOMDIGITIZER | 0x0940)
 #define WACOM_HID_WD_MODE_CHANGE        (WACOM_HID_UP_WACOMDIGITIZER | 0x0980)
 #define WACOM_HID_WD_MUTE_DEVICE        (WACOM_HID_UP_WACOMDIGITIZER | 0x0981)
 #define WACOM_HID_WD_CONTROLPANEL       (WACOM_HID_UP_WACOMDIGITIZER | 0x0982)
@@ -342,7 +342,7 @@
 	struct input_dev *pen_input;
 	struct input_dev *touch_input;
 	struct input_dev *pad_input;
-	struct kfifo_rec_ptr_2 pen_fifo;
+	struct kfifo_rec_ptr_2 *pen_fifo;
 	int pid;
 	int num_contacts_left;
 	u8 bt_features;